You can learn about technical indicators here:  http://stockcharts.com/school/doku.php?id=chart_school:technical_indicators

You can use bitcoincharts to add moving averages and some indicators, but it does not update in real-time, nor are the charts interactive: http://bitcoincharts.com/charts/mtgoxUSD#rg60ztgSzm1g10zm2g25zv

BTC/USD does not trade like your typical real-world financial instrument, so take this all with a heavy dose of skepticism...